Cancellation of Share Premium Account

BlackRock North American Income Trust plc (the "Company")

Cancellation of Share Premium Account

Further to the Prospectus of 14 September 2012, the Company confirms that by an
order of the High Court of Justice (Chancery Division) (the "Court") dated 12
December 2012 the cancellation of the Company's share premium account (the
"Reduction") was approved. A statement of capital approved by the Court in
respect of the Reduction was registered by the Registrar of Companies on 19
December 2012. The purpose of the Reduction, which takes effect from today, is
to create sufficient distributable reserves to support the Company's
distribution policy. The Reduction is a legal and accounting adjustment and
does not of itself have any direct impact on the market value of the Company's
shares.

19 December 2012

All enquires:

Barbara Powley
Company Secretary
BlackRock Investment Management (UK) Limited

Tel: [phone]